Assignee
HNU SYST INC
US·10 granted patents·102 citations·filing 1974–1988
Top patents by PatentIndex Score
10 records- 0189US3933432APhotoionizationHNU SYST INC·Filed 1974·Granted Jan 20, 1976·29 cites·25 claims
- 0287US4013913AIon detection electrode arrangementHNU SYST INC·Filed 1976·Granted Mar 22, 1977·28 cites·21 claims
- 0346US4756804AMethod of detecting hydrogen cyanide gas in a gaseous or liquid sampleHNU SYST INC·Filed 1987·Granted Jul 12, 1988·12 cites·2 claims
- 0443US4846937AMethod of detecting carbon dioxide in a gaseous or liquid sampleHNU SYST INC·Filed 1988·Granted Jul 11, 1989·10 cites·2 claims
- 0540US4549953AIon-selective electrodesHNU SYST INC·Filed 1984·Granted Oct 29, 1985·7 cites·10 claims
- 0633US4801841AGas discharge lamp with built-in resistance to color center formation in ultraviolet-transmissive windowHNU SYST INC·Filed 1988·Granted Jan 31, 1989·2 cites·11 claims
- 0733US4659434AGas sensorHNU SYST INC·Filed 1985·Granted Apr 21, 1987·5 cites·2 claims
- 0830US4849058AMethod of detecting nitrogen oxides in gaseous or liquid samplesHNU SYST INC·Filed 1988·Granted Jul 18, 1989·3 cites·4 claims
- 0930US4842697AMethod of determining ammonia in a gaseous or liquid sampleHNU SYST INC·Filed 1988·Granted Jun 27, 1989·3 cites·4 claims
- 1030US4780185AMethod of determining H2 SHNU SYST INC·Filed 1987·Granted Oct 25, 1988·3 cites·2 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →